Multi-Stage Press Tool Layout for Centralized Die Loading
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Solution Overview
Problem
Existing press technologies face challenges in reducing loads and non-productive times due to eccentric loads and tilting, which increase wear and require manual intervention for die lubrication.
Innovation Solution
A multi-stage tool design with movable dies in both the upper and lower tools, connected to a press ram and table via displacement units and drives, allowing for centralized loading and automated operation, with parallel axes of travel to maintain consistent die positioning and facilitate lubrication access without stopping the press.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the dies are fixed in position, then the structure is simple, but the press experiences eccentric loads and tilting causing increased wear
Solution Approach 1:
The patent applies the dynamics principle by making the die carriers movable instead of fixed. The upper die carrier can be positioned at different horizontal locations along the press ram, and the lower die carrier can be positioned at different horizontal locations along the press table. This dynamic positioning capability allows the tool to adapt to multi-stage forming operations while maintaining consistent vertical loading, thereby resolving the contradiction between structural simplicity and loading consistency.
2Device complexity
If manual die lubrication is required, then the structure is simple, but non-productive time increases
Solution Approach 1:
The patent implements self-service through automated lubrication systems that apply lubricant to the dies automatically during the pressing cycle. The system includes lubricant reservoirs, pumps, and distribution mechanisms that deliver lubricant to the die surfaces without requiring manual intervention. This automation eliminates non-productive downtime for manual lubrication while maintaining simple overall system architecture.
3Adaptability or versatility
If the die carriers are movably guided, then positioning flexibility is improved, but device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the tool into separate movable die carriers - an upper die carrier and a lower die carrier - each capable of independent horizontal positioning. This segmentation allows each carrier to be optimized for its specific positioning requirements while maintaining overall system versatility. The guidance mechanisms for each carrier are designed independently, reducing the complexity that would arise from attempting to move the entire tool assembly as a single unit.
Data Source
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AI summary
The invention relates to a tool (1) comprising an upper tool (30) and a lower tool (60) and designed as a multi-stage tool, wherein the upper tool (30) comprises n dies (A, B) and wherein the lower tool (60) comprises n dies (a, b). Here, the dies (A, B) and the dies (a, b) can be positioned relative to each other in a horizontal direction in at least n positions (I), wherein the n dies (A, B) of the upper tool (30) and the n dies (a, b) of the lower tool (60) are movable relative to each other in a horizontal direction such that, in a first position (I) to form a first die pair (Ab), the first die (A) of the upper tool (30) and the nth die (b) of the lower tool (60) are aligned one above the other, and that, in an nth position to form an nth die pair, the nth die (B) of the upper tool (30) and the first die (a) of the lower tool (60) are aligned one above the other. (Figure 1)